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MIC2292-15YML-TR

Product Image X-ON

LED Lighting Drivers 1.6MHz White LED Driver w/15V OVP
Manufacturer: Microchip


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Manufacturer
Microchip
Product Category
LED Lighting Drivers
RoHS - XON
Y Icon ROHS
Mounting Style
Smd/Smt
Package / Case
MLF-8
Packaging
Reel
Brand
Microchip Technology / Micrel
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MIC2292/93 High-Frequency PWM White LED Drivers with Internal Schottky Diode and OVP General Description Features The MIC2292 and MIC2293 are high frequency, Pulse ? 2.5V to 10V input voltage Width Modulator (PWM) boost regulators optimized for ? Output voltage up to 34V constant-current, white LED driver applications. Because ? Internal Schottky diode of their constant PWM switching frequencies of 1.6MHz ? 1.6MHz PWM operation (MIC2292) and 2MHz, respectively, the MIC2292/93 can use the smallest external components, allowing designers to avoid ? 2.0MHz PWM operation (MIC2293) sensitive IF bands in their RF applications. ? Stable with ceramic capacitors The products feature an internal Schottky diode and two ? 15V and 34V output overvoltage protection options levels of output overvoltage protection allowing a small ? 500mA switch current rating size and efficient DC/DC solution that requires only four ? 95mV feedback voltage external components. ? <1% line and load regulation The 2.5V to 10V input voltage range of MIC2292/3 allows ? <1?A shutdown current direct operation from 1- and 2-cell Li Ion as well as 3- to 4- cell NiCad/NiMH/Alkaline batteries. The MIC2292/3 ? Over-temperature protection products are available in a small size 2mm ? 2mm 8-pin ? UVLO ? MLF package and have a junction temperature range of ? ? 8-pin (2mm ? 2mm) MLF package ?40?C to +125?C. ? ?40?C to +125?C junction temperature range Data sheets and support documentation can be found on Applications Micrel?s web site at: www.micrel.com. ? White LED driver for backlighting: ? Cell phones ? PDAs ? GPS systems ? Digital cameras ? MP3 players ? IP phones ? Constant-current power supplies _________________________________________________________________________________________________________________________ Typical Application 1.6MHz PWM White LED Driver with 15V OVP 2MHz PWM White LED Driver with 15V OVP MLF and MicroLead Frame are registered trademarks of Amkor Technology, Inc. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-040212-B April 2012 MIC2292/93 High-Frequency PWM White LED Drivers with Internal Schottky Diode and OVP General Description Features The MIC2292 and MIC2293 are high frequency, Pulse ? 2.5V to 10V input voltage Width Modulator (PWM) boost regulators optimized for ? Output voltage up to 34V constant-current, white LED driver applications. Because ? Internal Schottky diode of their constant PWM switching frequencies of 1.6MHz ? 1.6MHz PWM operation (MIC2292) and 2MHz, respectively, the MIC2292/93 can use the smallest external components, allowing designers to avoid ? 2.0MHz PWM operation (MIC2293) sensitive IF bands in their RF applications. ? Stable with ceramic capacitors The products feature an internal Schottky diode and two ? 15V and 34V output overvoltage protection options levels of output overvoltage protection allowing a small ? 500mA switch current rating size and efficient DC/DC solution that requires only four ? 95mV feedback voltage external components. ? <1% line and load regulation The 2.5V to 10V input voltage range of MIC2292/3 allows ? <1?A shutdown current direct operation from 1- and 2-cell Li Ion as well as 3- to 4- cell NiCad/NiMH/Alkaline batteries. The MIC2292/3 ? Over-temperature protection products are available in a small size 2mm ? 2mm 8-pin ? UVLO ? MLF package and have a junction temperature range of ? ? 8-pin (2mm ? 2mm) MLF package ?40?C to +125?C. ? ?40?C to +125?C junction temperature range Data sheets and support documentation can be found on Applications Micrel?s web site at: www.micrel.com. ? White LED driver for backlighting: - Cell phones - PDAs - GPS systems - Digital cameras - MP3 players - IP phones ? Constant-current power supplies _________________________________________________________________________________________________________________________ Typical Application 1.6MHz PWM White LED Driver with 15V OVP 2MHz PWM White LED Driver with 15V OVP MLF and MicroLead Frame are registered trademarks of Amkor Technology, Inc. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-040212-B April 2012 Micrel, Inc. MIC2292/93 Ordering Information Marking Overvoltage Junction Temperature Lead Part Number Frequency Package Code Protection Range Finish ? MIC2292-15BML SWA 15V 1.6MHz ?40? to +125?C 8-Pin MLF Standard ? MIC2292-15YML 15V 1.6MHz ?40? to +125?C 8-Pin MLF Pb-Free SWA ? MIC2292-34BML SWC 34V 1.6MHz ?40? to +125?C 8-Pin MLF Standard ? MIC2292-34YML 34V 1.6MHz ?40? to +125?C 8-Pin MLF Pb-Free SWC ? MIC2293-15BML SZA 15V 2MHz ?40? to +125?C 8-Pin MLF Standard ? MIC2293-15YML 15V 2MHz ?40? to +125?C 8-Pin MLF Pb-Free SZA ? MIC2293-34BML SZC 34V 2MHz ?40? to +125?C 8-Pin MLF Standard ? MIC2293-34YML 34V 2MHz ?40? to +125?C 8-Pin MLF Pb-Free SZC Pin Configuration ? 8-Pin MLF (ML) (Top View) Fused Lead Frame Pin Description Pin Number Pin Name Pin Function 1 OUT Output Pin and Overvoltage Protection (Output). Connect to the output capacitor and LEDs. 2 VIN Supply (Input). Input voltage. 3 EN Enable (Input). Logic HIGH enables regulator and logic LOW shuts down regulator. 5 NC No Connect. No internal connection to die. Feedback (Input). Output voltage sense node. Connect the cathode of the LED to this pin. A 6 FB resistor from this pin to Ground (GND) sets the LED current. 7 SW Switch Node (Input). Internal power transistor collector. 4, 8 GND Ground (Return). Ground. EP GND Ground (Return). Exposed backside pad (ePad). M9999-040212-B April 2012 2 MIC2292/93 High-Frequency PWM White LED Drivers with Internal Schottky Diode and OVP General Description Features The MIC2292 and MIC2293 are high frequency, Pulse ? 2.5V to 10V input voltage Width Modulator (PWM) boost regulators optimized for ? Output voltage up to 34V constant-current, white LED driver applications. Because ? Internal Schottky diode of their constant PWM switching frequencies of 1.6MHz ? 1.6MHz PWM operation (MIC2292) and 2MHz, respectively, the MIC2292/93 can use the smallest external components, allowing designers to avoid ? 2.0MHz PWM operation (MIC2293) sensitive IF bands in their RF applications. ? Stable with ceramic capacitors The products feature an internal Schottky diode and two ? 15V and 34V output overvoltage protection options levels of output overvoltage protection allowing a small ? 500mA switch current rating size and efficient DC/DC solution that requires only four ? 95mV feedback voltage external components. ? <1% line and load regulation The 2.5V to 10V input voltage range of MIC2292/3 allows ? <1?A shutdown current direct operation from 1- and 2-cell Li Ion as well as 3- to 4- cell NiCad/NiMH/Alkaline batteries. The MIC2292/3 ? Over-temperature protection products are available in a small size 2mm ? 2mm 8-pin ? UVLO ? MLF package and have a junction temperature range of ? ? 8-pin (2mm ? 2mm) MLF package ?40?C to +125?C. ? ?40?C to +125?C junction temperature range Data sheets and support documentation can be found on Applications Micrel?s web site at: www.micrel.com. ? White LED driver for backlighting: - Cell phones - PDAs - GPS systems - Digital cameras - MP3 players - IP phones ? Constant-current power supplies _________________________________________________________________________________________________________________________ Typical Application 1.6MHz PWM White LED Driver with 15V OVP 2MHz PWM White LED Driver with 15V OVP MLF and MicroLead Frame are registered trademarks of Amkor Technology, Inc. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-040212-B April 2012 MIC2292/93 High-Frequency PWM White LED Drivers with Internal Schottky Diode and OVP General Description Features The MIC2292 and MIC2293 are high frequency, Pulse ? 2.5V to 10V input voltage Width Modulator (PWM) boost regulators optimized for ? Output voltage up to 34V constant-current, white LED driver applications. Because ? Internal Schottky diode of their constant PWM switching frequencies of 1.6MHz ? 1.6MHz PWM operation (MIC2292) and 2MHz, respectively, the MIC2292/93 can use the smallest external components, allowing designers to avoid ? 2.0MHz PWM operation (MIC2293) sensitive IF bands in their RF applications. ? Stable with ceramic capacitors The products feature an internal Schottky diode and two ? 15V and 34V output overvoltage protection options levels of output overvoltage protection allowing a small ? 500mA switch current rating size and efficient DC/DC solution that requires only four ? 95mV feedback voltage external components. ? <1% line and load regulation The 2.5V to 10V input voltage range of MIC2292/3 allows ? <1?A shutdown current direct operation from 1- and 2-cell Li Ion as well as 3- to 4- cell NiCad/NiMH/Alkaline batteries. The MIC2292/3 ? Over-temperature protection products are available in a small size 2mm ? 2mm 8-pin ? UVLO ? MLF package and have a junction temperature range of ? ? 8-pin (2mm ? 2mm) MLF package ?40?C to +125?C. ? ?40?C to +125?C junction temperature range Data sheets and support documentation can be found on Applications Micrel?s web site at: www.micrel.com. ? White LED driver for backlighting: - Cell phones - PDAs - GPS systems - Digital cameras - MP3 players - IP phones ? Constant-current power supplies _________________________________________________________________________________________________________________________ Typical Application 1.6MHz PWM White LED Driver with 15V OVP 2MHz PWM White LED Driver with 15V OVP MLF and MicroLead Frame are registered trademarks of Amkor Technology, Inc. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-040212-B April 2012 Micrel, Inc. MIC2292/93 Ordering Information Marking Overvoltage Junction Temperature Lead Part Number Frequency Package Code Protection Range Finish ? MIC2292-15BML SWA 15V 1.6MHz ?40? to +125?C 8-Pin MLF Standard ? MIC2292-15YML 15V 1.6MHz ?40? to +125?C 8-Pin MLF Pb-Free SWA ? MIC2292-34BML SWC 34V 1.6MHz ?40? to +125?C 8-Pin MLF Standard ? MIC2292-34YML 34V 1.6MHz ?40? to +125?C 8-Pin MLF Pb-Free SWC ? MIC2293-15BML SZA 15V 2MHz ?40? to +125?C 8-Pin MLF Standard ? MIC2293-15YML 15V 2MHz ?40? to +125?C 8-Pin MLF Pb-Free SZA ? MIC2293-34BML SZC 34V 2MHz ?40? to +125?C 8-Pin MLF Standard ? MIC2293-34YML 34V 2MHz ?40? to +125?C 8-Pin MLF Pb-Free SZC Pin Configuration ? 8-Pin MLF (ML) (Top View) Fused Lead Frame Pin Description Pin Number Pin Name Pin Function 1 OUT Output Pin and Overvoltage Protection (Output). Connect to the output capacitor and LEDs. 2 VIN Supply (Input). Input voltage. 3 EN Enable (Input). Logic HIGH enables regulator and logic LOW shuts down regulator. 5 NC No Connect. No internal connection to die. Feedback (Input). Output voltage sense node. Connect the cathode of the LED to this pin. A 6 FB resistor from this pin to Ground (GND) sets the LED current. 7 SW Switch Node (Input). Internal power transistor collector. 4, 8 GND Ground (Return). Ground. EP GND Ground (Return). Exposed backside pad (ePad). M9999-040212-B April 2012 2 Micrel, Inc. MIC2292/93 (1) (2) Absolute Maximum Ratings Operating Ratings Supply Voltage (V ).....................................................+12V Supply Voltage (V ).................................... +2.5V to +10V IN IN ) ....................................... V to V Switch Voltage (V )....................................... ?0.3V to 34V Output Voltage (V OUT IN OVP SW Junction Temperature Range (T )........... ?40?C to +125?C J Enable Pin Voltage (V )................................... ?0.3V to V EN IN Package Thermal Impedance FB Voltage (V )...............................................................6V FB ? ) .........................................................2A 8-Pin MLF (? ) .............................................. 93?C/W Switch Current (I JA SW Ambient Storage Temperature (T )........... ?65?C to +150 ?C S Schottky Reverse Voltage (V ).....................................34V DA (3) ESD Rating ..................................................................2kV (4) Electrical Characteristics T = +25?C, V = V = 3.6V, V = 15V, I = 20mA, unless otherwise indicated. Bold values indicate ?40?C? T ? +125?C. A IN EN OUT OUT J Symbol Parameter Condition Min. Typ. Max. Units V Supply Voltage Range 2.5 10 V IN V Undervoltage Lockout 1.8 2.1 2.4 V UVLO I Quiescent Current 2.5 5 mA VIN V > 200mV (not switching) FB (5) I Shutdown Current V = 0V 0.1 1 ?A SD EN V Feedback Voltage (?5%) 90 95 100 mV FB I Feedback Input Current V = 95mV -450 nA FB FB (6) Line Regulation 3V ? V ? 5V 0.5 1 IN % (6) Load Regulation 5mA ? I ? 20mA 0.5 2 OUT D Maximum Duty Cycle 85 90 % MAX I Switch Current Limit 750 mA SW V Switch Saturation Voltage I = 0.5A 450 mV SW SW I Switch Leakage Current V = 0V, V = 10V 0.01 5 ?A SW EN SW Turn-On 1.5 V Enable Threshold V EN Turn-Off 0.4 I Enable Pin Current V = 10V 20 40 ?A EN EN MIC2292 1.4 1.6 1.8 f Oscillator Frequency MHz SW MIC2293 1.75 2.0 2.25 Notes: 1. Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the device outside of its operating ratings. The maximum allowable power dissipation is a function of the maximum junction temperature, T , J(MAX) the junction-to-ambient thermal resistance, ? , and the ambient temperature, T . The maximum allowable power dissipation will result in excessive JA A die temperature, and the regulator will go into thermal shutdown. 2. The device is not guaranteed to operate beyond its specified operating ratings. 3. Devices are inherently ESD sensitive. Handling precautions required. Human body model, 1.5k ? in series with 100pF. 4. Specification for packaged product only. 5. I = I . SD VIN 6. Guaranteed by design. M9999-040212-B April 2012 3 MIC2292/93 High-Frequency PWM White LED Drivers with Internal Schottky Diode and OVP General Description Features The MIC2292 and MIC2293 are high frequency, Pulse ? 2.5V to 10V input voltage Width Modulator (PWM) boost regulators optimized for ? Output voltage up to 34V constant-current, white LED driver applications. Because ? Internal Schottky diode of their constant PWM switching frequencies of 1.6MHz ? 1.6MHz PWM operation (MIC2292) and 2MHz, respectively, the MIC2292/93 can use the smallest external components, allowing designers to avoid ? 2.0MHz PWM operation (MIC2293) sensitive IF bands in their RF applications. ? Stable with ceramic capacitors The products feature an internal Schottky diode and two ? 15V and 34V output overvoltage protection options levels of output overvoltage protection allowing a small ? 500mA switch current rating size and efficient DC/DC solution that requires only four ? 95mV feedback voltage external components. ? <1% line and load regulation The 2.5V to 10V input voltage range of MIC2292/3 allows ? <1?A shutdown current direct operation from 1- and 2-cell Li Ion as well as 3- to 4- cell NiCad/NiMH/Alkaline batteries. The MIC2292/3 ? Over-temperature protection products are available in a small size 2mm ? 2mm 8-pin ? UVLO ? MLF package and have a junction temperature range of ? ? 8-pin (2mm ? 2mm) MLF package ?40?C to +125?C. ? ?40?C to +125?C junction temperature range Data sheets and support documentation can be found on Applications Micrel?s web site at: www.micrel.com. ? White LED driver for backlighting: - Cell phones - PDAs - GPS systems - Digital cameras - MP3 players - IP phones ? Constant-current power supplies _________________________________________________________________________________________________________________________ Typical Application 1.6MHz PWM White LED Driver with 15V OVP 2MHz PWM White LED Driver with 15V OVP MLF and MicroLead Frame are registered trademarks of Amkor Technology, Inc. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-040212-B April 2012 MIC2292/93 High-Frequency PWM White LED Drivers with Internal Schottky Diode and OVP General Description Features The MIC2292 and MIC2293 are high frequency, Pulse ? 2.5V to 10V input voltage Width Modulator (PWM) boost regulators optimized for ? Output voltage up to 34V constant-current, white LED driver applications. Because ? Internal Schottky diode of their constant PWM switching frequencies of 1.6MHz ? 1.6MHz PWM operation (MIC2292) and 2MHz, respectively, the MIC2292/93 can use the smallest external components, allowing designers to avoid ? 2.0MHz PWM operation (MIC2293) sensitive IF bands in their RF applications. ? Stable with ceramic capacitors The products feature an internal Schottky diode and two ? 15V and 34V output overvoltage protection options levels of output overvoltage protection allowing a small ? 500mA switch current rating size and efficient DC/DC solution that requires only four ? 95mV feedback voltage external components. ? <1% line and load regulation The 2.5V to 10V input voltage range of MIC2292/3 allows ? <1?A shutdown current direct operation from 1- and 2-cell Li Ion as well as 3- to 4- cell NiCad/NiMH/Alkaline batteries. The MIC2292/3 ? Over-temperature protection products are available in a small size 2mm ? 2mm 8-pin ? UVLO ? MLF package and have a junction temperature range of ? ? 8-pin (2mm ? 2mm) MLF package ?40?C to +125?C. ? ?40?C to +125?C junction temperature range Data sheets and support documentation can be found on Applications Micrel?s web site at: www.micrel.com. ? White LED driver for backlighting: - Cell phones - PDAs - GPS systems - Digital cameras - MP3 players - IP phones ? Constant-current power supplies _________________________________________________________________________________________________________________________ Typical Application 1.6MHz PWM White LED Driver with 15V OVP 2MHz PWM White LED Driver with 15V OVP MLF and MicroLead Frame are registered trademarks of Amkor Technology, Inc. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-040212-B April 2012 Micrel, Inc. MIC2292/93 Ordering Information Marking Overvoltage Junction Temperature Lead Part Number Frequency Package Code Protection Range Finish ? MIC2292-15BML SWA 15V 1.6MHz ?40? to +125?C 8-Pin MLF Standard ? MIC2292-15YML 15V 1.6MHz ?40? to +125?C 8-Pin MLF Pb-Free SWA ? MIC2292-34BML SWC 34V 1.6MHz ?40? to +125?C 8-Pin MLF Standard ? MIC2292-34YML 34V 1.6MHz ?40? to +125?C 8-Pin MLF Pb-Free SWC ? MIC2293-15BML SZA 15V 2MHz ?40? to +125?C 8-Pin MLF Standard ? MIC2293-15YML 15V 2MHz ?40? to +125?C 8-Pin MLF Pb-Free SZA ? MIC2293-34BML SZC 34V 2MHz ?40? to +125?C 8-Pin MLF Standard ? MIC2293-34YML 34V 2MHz ?40? to +125?C 8-Pin MLF Pb-Free SZC Pin Configuration ? 8-Pin MLF (ML) (Top View) Fused Lead Frame Pin Description Pin Number Pin Name Pin Function 1 OUT Output Pin and Overvoltage Protection (Output). Connect to the output capacitor and LEDs. 2 VIN Supply (Input). Input voltage. 3 EN Enable (Input). Logic HIGH enables regulator and logic LOW shuts down regulator. 5 NC No Connect. No internal connection to die. Feedback (Input). Output voltage sense node. Connect the cathode of the LED to this pin. A 6 FB resistor from this pin to Ground (GND) sets the LED current. 7 SW Switch Node (Input). Internal power transistor collector. 4, 8 GND Ground (Return). Ground. EP GND Ground (Return). Exposed backside pad (ePad). M9999-040212-B April 2012 2 MIC2292/93 High-Frequency PWM White LED Drivers with Internal Schottky Diode and OVP General Description Features The MIC2292 and MIC2293 are high frequency, Pulse ? 2.5V to 10V input voltage Width Modulator (PWM) boost regulators optimized for ? Output voltage up to 34V constant-current, white LED driver applications. Because ? Internal Schottky diode of their constant PWM switching frequencies of 1.6MHz ? 1.6MHz PWM operation (MIC2292) and 2MHz, respectively, the MIC2292/93 can use the smallest external components, allowing designers to avoid ? 2.0MHz PWM operation (MIC2293) sensitive IF bands in their RF applications. ? Stable with ceramic capacitors The products feature an internal Schottky diode and two ? 15V and 34V output overvoltage protection options levels of output overvoltage protection allowing a small ? 500mA switch current rating size and efficient DC/DC solution that requires only four ? 95mV feedback voltage external components. ? <1% line and load regulation The 2.5V to 10V input voltage range of MIC2292/3 allows ? <1?A shutdown current direct operation from 1- and 2-cell Li Ion as well as 3- to 4- cell NiCad/NiMH/Alkaline batteries. The MIC2292/3 ? Over-temperature protection products are available in a small size 2mm ? 2mm 8-pin ? UVLO ? MLF package and have a junction temperature range of ? ? 8-pin (2mm ? 2mm) MLF package ?40?C to +125?C. ? ?40?C to +125?C junction temperature range Data sheets and support documentation can be found on Applications Micrel?s web site at: www.micrel.com. ? White LED driver for backlighting: - Cell phones - PDAs - GPS systems - Digital cameras - MP3 players - IP phones ? Constant-current power supplies _________________________________________________________________________________________________________________________ Typical Application 1.6MHz PWM White LED Driver with 15V OVP 2MHz PWM White LED Driver with 15V OVP MLF and MicroLead Frame are registered trademarks of Amkor Technology, Inc. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-040212-B April 2012 MIC2292/93 High-Frequency PWM White LED Drivers with Internal Schottky Diode and OVP General Description Features The MIC2292 and MIC2293 are high frequency, Pulse ? 2.5V to 10V input voltage Width Modulator (PWM) boost regulators optimized for ? Output voltage up to 34V constant-current, white LED driver applications. Because ? Internal Schottky diode of their constant PWM switching frequencies of 1.6MHz ? 1.6MHz PWM operation (MIC2292) and 2MHz, respectively, the MIC2292/93 can use the smallest external components, allowing designers to avoid ? 2.0MHz PWM operation (MIC2293) sensitive IF bands in their RF applications. ? Stable with ceramic capacitors The products feature an internal Schottky diode and two ? 15V and 34V output overvoltage protection options levels of output overvoltage protection allowing a small ? 500mA switch current rating size and efficient DC/DC solution that requires only four ? 95mV feedback voltage external components. ? <1% line and load regulation The 2.5V to 10V input voltage range of MIC2292/3 allows ? <1?A shutdown current direct operation from 1- and 2-cell Li Ion as well as 3- to 4- cell NiCad/NiMH/Alkaline batteries. The MIC2292/3 ? Over-temperature protection products are available in a small size 2mm ? 2mm 8-pin ? UVLO ? MLF package and have a junction temperature range of ? ? 8-pin (2mm ? 2mm) MLF package ?40?C to +125?C. ? ?40?C to +125?C junction temperature range Data sheets and support documentation can be found on Applications Micrel?s web site at: www.micrel.com. ? White LED driver for backlighting: - Cell phones - PDAs - GPS systems - Digital cameras - MP3 players - IP phones ? Constant-current power supplies _________________________________________________________________________________________________________________________ Typical Application 1.6MHz PWM White LED Driver with 15V OVP 2MHz PWM White LED Driver with 15V OVP MLF and MicroLead Frame are registered trademarks of Amkor Technology, Inc. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-040212-B April 2012 Micrel, Inc. MIC2292/93 Ordering Information Marking Overvoltage Junction Temperature Lead Part Number Frequency Package Code Protection Range Finish ? MIC2292-15BML SWA 15V 1.6MHz ?40? to +125?C 8-Pin MLF Standard ? MIC2292-15YML 15V 1.6MHz ?40? to +125?C 8-Pin MLF Pb-Free SWA ? MIC2292-34BML SWC 34V 1.6MHz ?40? to +125?C 8-Pin MLF Standard ? MIC2292-34YML 34V 1.6MHz ?40? to +125?C 8-Pin MLF Pb-Free SWC ? MIC2293-15BML SZA 15V 2MHz ?40? to +125?C 8-Pin MLF Standard ? MIC2293-15YML 15V 2MHz ?40? to +125?C 8-Pin MLF Pb-Free SZA ? MIC2293-34BML SZC 34V 2MHz ?40? to +125?C 8-Pin MLF Standard ? MIC2293-34YML 34V 2MHz ?40? to +125?C 8-Pin MLF Pb-Free SZC Pin Configuration ? 8-Pin MLF (ML) (Top View) Fused Lead Frame Pin Description Pin Number Pin Name Pin Function 1 OUT Output Pin and Overvoltage Protection (Output). Connect to the output capacitor and LEDs. 2 VIN Supply (Input). Input voltage. 3 EN Enable (Input). Logic HIGH enables regulator and logic LOW shuts down regulator. 5 NC No Connect. No internal connection to die. Feedback (Input). Output voltage sense node. Connect the cathode of the LED to this pin. A 6 FB resistor from this pin to Ground (GND) sets the LED current. 7 SW Switch Node (Input). Internal power transistor collector. 4, 8 GND Ground (Return). Ground. EP GND Ground (Return). Exposed backside pad (ePad). M9999-040212-B April 2012 2 Micrel, Inc. MIC2292/93 (1) (2) Absolute Maximum Ratings Operating Ratings Supply Voltage (V ).....................................................+12V Supply Voltage (V ).................................... +2.5V to +10V IN IN ) ....................................... V to V Switch Voltage (V )....................................... -0.3V to 34V Output Voltage (V OUT IN OVP SW Junction Temperature Range (T )........... ?40?C to +125?C J Enable Pin Voltage (V )................................... -0.3V to V EN IN Package Thermal Impedance FB Voltage (V )...............................................................6V FB ? ) .........................................................2A 8-Pin MLF (? ) .............................................. 93?C/W Switch Current (I JA SW Ambient Storage Temperature (T )........... -65?C to +150 ?C S Schottky Reverse Voltage (V ).....................................34V DA (3) ESD Rating ..................................................................2kV (4) Electrical Characteristics T = +25?C, V = V = 3.6V, V = 15V, I = 20mA, unless otherwise indicated. Bold values indicate ?40?C= T = +125?C. A IN EN OUT OUT J Symbol Parameter Condition Min. Typ. Max. Units V Supply Voltage Range 2.5 10 V IN V Undervoltage Lockout 1.8 2.1 2.4 V UVLO I Quiescent Current 2.5 5 mA VIN V > 200mV (not switching) FB (5) I Shutdown Current V = 0V 0.1 1 ?A SD EN V Feedback Voltage (?5%) 90 95 100 mV FB I Feedback Input Current V = 95mV -450 nA FB FB (6) Line Regulation 3V = V = 5V 0.5 1 IN % (6) Load Regulation 5mA = I = 20mA 0.5 2 OUT D Maximum Duty Cycle 85 90 % MAX I Switch Current Limit 750 mA SW V Switch Saturation Voltage I = 0.5A 450 mV SW SW I Switch Leakage Current V = 0V, V = 10V 0.01 5 ?A SW EN SW Turn-On 1.5 V Enable Threshold V EN Turn-Off 0.4 I Enable Pin Current V = 10V 20 40 ?A EN EN MIC2292 1.4 1.6 1.8 f Oscillator Frequency MHz SW MIC2293 1.75 2.0 2.25 Notes: 1. Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the device outside of its operating ratings. The maximum allowable power dissipation is a function of the maximum junction temperature, T , J(MAX) the junction-to-ambient thermal resistance, ? , and the ambient temperature, T . The maximum allowable power dissipation will result in excessive JA A die temperature, and the regulator will go into thermal shutdown. 2. The device is not guaranteed to operate beyond its specified operating ratings. 3. Devices are inherently ESD sensitive. Handling precautions required. Human body model, 1.5k ? in series with 100pF. 4. Specification for packaged product only. 5. I = I . SD VIN 6. Guaranteed by design. M9999-040212-B April 2012 3

Tariff Concession Code
Tariff Desc

Free
8542.39.00 61 No ..Linear/analogue and peripheral integrated circuits, timers, voltage regulators, A/D and D/A converters, telecommunication and modem integrated circuits, other than board level products

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